Ok. I've scoured the internet but havent found a straight answer yet. I have an 01 Focus SPI and the valve seat dropped. I havent had much luck finding a reasonably priced replacement focus SPI motor, BUT I paid $130 bucks for a running Escort SPI. Looks like the intake, exhaust manifolds, timing cover, all brackets and accessories, and spark plugs are different. So, my question is, are the block and head the same? I was hoping I could pull out the focus motor, swap all the manifolds and accessories and install the escort SPI 2 liter with all the focus parts on it. Any 100% sure answers would be greatly appreciated.